I've actually seen "Santa Clause Conquers The Martians." Definitely
Mystery Science Theater 3000 material.
I sentimentally associate a lot of vintage sci-fi with Christmas and the time surrounding the holiday season. As a kid my brothers and I got a lot of presents having to do with outer space, laser guns, space ships, robots, monsters, and also dinosaurs, army men, all that kind of "boy" stuff. There always seemed to be a very stimulating if not schizophrenic mix of programming on tv during Christmas, an odd mixture of religious themes, festive holiday specials, Japanese Toho films, and the like. One thing I'm thankful for is that I got to be a kid in the 70s and 80s.
Yep, sci-fi and the holidays go together for me like eggnog and bourbon.